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Finite Element Analysis of an Advanced Superplastic Forming Process Utilizing a Mechanical Pre-form
Technical Paper
2007-01-1676
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Superplastic forming (SPF) is a manufacturing process that can facilitate increased use of aluminum in automobile body structures. Despite considerable advantages with regards to formability and tooling costs, the process has been mostly limited to low volume production due to relatively long cycle times. This paper focuses on the development of a simulation capability to model a novel double-action mechanical pre-forming SPF process which can enhance formability as well as improve production efficiency by combining technology of hot stamping and conventional superplastic forming. A commercial explicit finite element analysis (FEA) code was adopted to establish feasibility of the forming process. The predictive accuracy of the FEA code was established in terms of thickness distribution and material drawn-in by correlating simulation results with experiments conducted with a deep draw die. Parameters were also established for accurate simulation with reduced computation time and a general modeling strategy for hot deep draw pre-forming.
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Citation
Luo, Y., Peng, Y., Luckey, G., and Friedman, P., "Finite Element Analysis of an Advanced Superplastic Forming Process Utilizing a Mechanical Pre-form," SAE Technical Paper 2007-01-1676, 2007, https://doi.org/10.4271/2007-01-1676.Also In
Steel Innovations, Fatigue Research, Sheet/Hydro/Gas Forming Technology & Advanced High Strength Steel Development
Number: SP-2103; Published: 2007-04-16
Number: SP-2103; Published: 2007-04-16
References
- Hamilton C.H. Ghosh A.K. Superplastic Sheet Forming in Forming and Forging, ASM Handbook 14 American Society of Metals Metals Park, OH 1988
- Friedman P.A. Luckey S.G. “Strategic Direction for Application of Superplastic Forming in the Automotive Industry,” Ford R&A Internal Technical Report, SRR-2003-0037
- Friedman P.A. “Method and Apparatus for Superplastic Forming,” U.S. Patent Number 6,581,428 2003
- Raman H. Luckey S.G. Friedman P.A. Kridli G. Ford R&A Internal Technical Report 2005
- Friedman P.A. Copple W.B. “Superplastic Response in Al-Mg Sheet Alloys,” Journal of Materials Engineering and Performance 13 2004 335 347
- Friedman P.A. Miller C. Allor R.L. Copple W.B. “Development of Contact Pre-Heater for Superplastic Forming of Aluminum Sheet,” Ford R&A Internal Technical Report, SRR-2005-0006 2005 2
- Venkateswaran V. Luckey S.G. Kridli G. Friedman P.A. “Accuracy and Efficiency Issues Related to Element Size and Pressure Control in Superplastic Forming,” presented at the 34 th North American Manufacturing and Research Conference Marquette University May 23-26 2006